2056 microsquirt, Its alive! Now I have to tune it |
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2056 microsquirt, Its alive! Now I have to tune it |
peteyd |
May 28 2015, 08:10 PM
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Senior Member Group: Members Posts: 707 Joined: 27-March 08 From: Elora, Ontario, Canada Member No.: 8,858 Region Association: Canada |
I had my car on the road for only two summers until I wanted to get a more reliable engine. I was not too familiar with the microsquirt, or megasquirt system, but when Mark started to offer a kit I knew that it would be a great starting point. I also had followed the progress of McMarks, rwilner and Zachs conversions and figured they had done enough trail blazing that it would be a piece of cake.
I started to piece together my own little manuel of pictures and notes from other threads and came up with my own little DIY powerpoint. So hopefully this thread can benefit others and hopefully these guys dont mind that I am reposting some of their photos. I didnt just decide to buy the system on a whim though. It all started one night when I was driving home on the highway and I heard a pretty large bang. I had just replaced my oil pressure relief valve with the new tangerine product and thought my engine had just exploded! I pulled over and realized after digging around that my #3 spark plug blew out of the threads. I have a head temp sensor under the plug, so Im thinking that it wasnt turned in all the way and the pressure was too great for the threads to hold the plug. BTW the pressure relief valve is a great product That winter I pulled the engine and then the head and put a time-sert in #3 After bolting the heads back up, I noticed that my valve train geometry was off. So at that point I decided to measure and cut custom pushrods for the proper geometry. https://www.youtube.com/watch?v=aE-TJxlE7Ck And since I had the engine out, and Chris had just come out with another great engine product, I figured what the Hell, and bought his SS pushrod tubes and installed them. At this point I had been thinking about McMarks EFI kit seriously, and decided to pull the trigger. I ordered the kit from Mark @ Original Customs. I patiently waited and my kit finally came! Im using the stock 2L plenums and throttle body. Here is what came in the kit. (photos from Zach) I got the same stuff. |
Superhawk996 |
Dec 29 2018, 10:07 PM
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#2
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914 Guru Group: Members Posts: 5,891 Joined: 25-August 18 From: Woods of N. Idaho Member No.: 22,428 Region Association: Galt's Gulch |
This is an awesome post. I'll bookmark for future since I'm considering a MicroSquirt.
(IMG:style_emoticons/default/smilie_pokal.gif) I have a friend that has successfully used it on a non-Porsche. I trolled the MegaSquirt web site to see if anyone has posted 914 calibrations but didn't find much that wasn't a big bore or something heavily modified. Would you be willing to share your cal as a baseline? If I do it, I suspect that I'd modify a Weber Carb body to accept a fuel injector in each bore. I really like the look and intake sound of Dual Carbs but would like to get FI for tuning reasons. I used to be anti Air Conditioning and anti-FI. Then I bought a Miata in the 90's and saw the light. |
VaccaRabite |
Dec 30 2018, 08:42 AM
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En Garde! Group: Admin Posts: 13,465 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region |
This is an awesome post. I'll bookmark for future since I'm considering a MicroSquirt. (IMG:style_emoticons/default/smilie_pokal.gif) I have a friend that has successfully used it on a non-Porsche. I trolled the MegaSquirt web site to see if anyone has posted 914 calibrations but didn't find much that wasn't a big bore or something heavily modified. Would you be willing to share your cal as a baseline? If I do it, I suspect that I'd modify a Weber Carb body to accept a fuel injector in each bore. I really like the look and intake sound of Dual Carbs but would like to get FI for tuning reasons. I used to be anti Air Conditioning and anti-FI. Then I bought a Miata in the 90's and saw the light. You could do that, but you don't really want to. Not really. MS works primarily through measuring vacuum. As such, you want a source of steady vacuum (such as a plenum). You don't get that with ITBs. Lumpier cams only make this issue worse, so you would be stuck working with a mild stock cam. You can make MS work, but its not as simple. Added to that, my experience has been that you NEED an Idle Control Valve (ICV). You will have a hard time adding that to your modified carb setup. An air bypass screw will only get you so far, and you could end up with an atrocious idle when the car is warm, or a car that won't start when cold. Zach |
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